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keeping simple

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Power savings via software

March 4, 2010 yodaiken Uncategorized

This press release is particularly fluffy, but whatever the reality of this very vaguely defined algorithmic development the basic message is correct to validate nine

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Queues and algebra

February 28, 2010 yodaiken Uncategorized

Suppose we have a state machine Q, that implements a common first in first out queue. The input alphabet of Q consists of “Deq” and

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simple lemma about pipelines

February 25, 2010 yodaiken Uncategorized

The connection between group structure and pipeline design seems like it merits a lot more attention than it gets. It’s not too hard to show

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The Amory Lovins bottleneck

February 8, 2010 yodaiken Uncategorized

Lovins observes that power inputs in many industrial processes go into a bottleneck that makes power conservation hard if you start at the wrong end. 

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An interesting article in ACM communications: is the world ending?

February 7, 2010 yodaiken software business

Coverity has a program that reads other programs looking for errors. The company started as a research project from Stanford (how unusual!)  and the  Communications

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Toyota’s problem: hardware weenies and poor accounting practices [updated]

February 6, 2010 yodaiken software business, systems

Jamie Kitman’s look at the twisted path Toyota followed to it’s current difficulties inspired me to think about software and money – two topics I

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Recursion and state update and Hungarian Mathematicians

February 4, 2010 yodaiken academics

Please see this ever modifying page which seeks to demonstrate in a poorly organized, yet humorous manner, what the hell I’m trying to accomplish with

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Instructions per joule – a good start

February 2, 2010 yodaiken Uncategorized

… multi-GHz superscalar quad-core processors can execute approximately 100 million instructions per Joule, assuming all cores are active and avoid stalls or mispredictions. Lower-frequency in-order

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sequential and combinational state machines

February 2, 2010 yodaiken Uncategorized

There’s a correspondence between the notions of “combinational” and “sequential” in digital circuit engineering and some structure in state machines (and therefore monoids)  that seems

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Linux semaphores

January 29, 2010 yodaiken operating systems

Re: Schedule idle MOLNAR Ingo (mingo@chiara.csoma.elte.hu) Wed, 11 Nov 1998 04:09:32 +0100 (CET) […] > _please_ We can do better than this. Only semaphores (not

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